"For many things we can find substitutes, but there is not now, nor will there ever be, a substitute for creative thou…"

"That's right. That's right. They were scientists involved in public health. And for that reason, I always was encoura…"

"Yes, I was academically inclined. I was the good student. I raised my hand a lot. I got good grades, and I tended to …"

"I share my story because it’s important that you understand me and the value I place on learning and formal education"

"Earning a PhD from Northwestern was an important milestone in my life. I once stood where you now stand. I know how h…"

"I once stood where you now stand. I know how hard you have worked to get where you are today, and I am impressed by y…"

"For my science project, I studied how quickly different foods would mold when placed in various locations. At one poi…"

"My mother encouraged me every step of the way and she always believed in me. Her confidence fortified me for decades."

"Whatever your future holds, I hope you will serve humanity and positively impact the way we live."

"Each of you has your own crew of supporters. You can name those friends and family members right now. Those who belie…"